Digestion · 1978 · 74 citations · 0 references
Protein SecretionPassive FluxMammalian PhysiologyNon-parietal Cell SecretionCellular PhysiologyEmbryology16,16-Dimethyl Prostaglandin EMembrane TransportBioanalysisSecretory GranulesOsmoregulationCanine Heidenhain PouchesAnimal Physiology16,16-Dimethyl Prostaglandin E2Veterinary PhysiologyMolecular PhysiologySmall Animal Internal MedicineEndocrinologyPharmacologyCell BiologyPermeability EffectsPhysiologyVeterinary ScienceAnesthesiaMedicineExtracellular Matrix
The permeability effects of topical and intravenous prostaglandin E2 (PGE2) and 16,16-dimethyl prostaglandin E2 (16DM) were studied in canine Heidenhain pouches using an acid-free perfusate, and changes in volume and HCO-3 content of the perfusate were measured. Topical and intravenous 16DM increased the apparent flux of Na+ and Cl-, and stimulated the secretion of fluid containing HCO-3. 16DM stimulates non-parietal cell secretion and therefore the movement of Na+ cannot be interpreted as passive flux in response to changes in permeability.